tb.vhd
230 lines
| 6.8 KiB
| text/x-vhdl
|
VhdlLexer
|
r644 | |||
LIBRARY ieee; | ||||
USE ieee.std_logic_1164.ALL; | ||||
USE ieee.numeric_std.ALL; | ||||
USE IEEE.std_logic_signed.ALL; | ||||
USE IEEE.MATH_real.ALL; | ||||
LIBRARY techmap; | ||||
USE techmap.gencomp.ALL; | ||||
LIBRARY std; | ||||
USE std.textio.ALL; | ||||
LIBRARY lpp; | ||||
USE lpp.iir_filter.ALL; | ||||
USE lpp.lpp_ad_conv.ALL; | ||||
USE lpp.FILTERcfg.ALL; | ||||
USE lpp.lpp_lfr_filter_coeff.ALL; | ||||
USE lpp.general_purpose.ALL; | ||||
USE lpp.data_type_pkg.ALL; | ||||
USE lpp.lpp_lfr_pkg.ALL; | ||||
USE lpp.general_purpose.ALL; | ||||
USE lpp.lpp_sim_pkg.ALL; | ||||
USE lpp.lpp_waveform_pkg.ALL; | ||||
ENTITY testbench IS | ||||
GENERIC( | ||||
tech : INTEGER := 0; --axcel,0 | ||||
Mem_use : INTEGER := use_CEL --use_RAM,use_CEL | ||||
); | ||||
END; | ||||
ARCHITECTURE behav OF testbench IS | ||||
----------------------------------------------------------------------------- | ||||
-- CONFIG FILTER IIR f0 to f1 | ||||
----------------------------------------------------------------------------- | ||||
CONSTANT f0_to_f1_CEL_NUMBER : INTEGER := 5; | ||||
CONSTANT f0_to_f1_COEFFICIENT_SIZE : INTEGER := 10; | ||||
CONSTANT f0_to_f1_POINT_POSITION : INTEGER := 8; | ||||
CONSTANT f0_to_f1_sos : COEFF_CEL_ARRAY_REAL(1 TO 5) := | ||||
( | ||||
(1.0, -1.61171504942096, 1.0, 1.0, -1.68876443778669, 0.908610171614583), | ||||
(1.0, -1.53324505744412, 1.0, 1.0, -1.51088513595779, 0.732564401274351), | ||||
(1.0, -1.30646173160060, 1.0, 1.0, -1.30571711968384, 0.546869268827102), | ||||
(1.0, -0.651038739239370, 1.0, 1.0, -1.08747326287406, 0.358436944718464), | ||||
(1.0, 1.24322747034001, 1.0, 1.0, -0.929530176676438, 0.224862726961691) | ||||
); | ||||
CONSTANT f0_to_f1_gain : COEFF_CEL_REAL := | ||||
( 0.566196896119831, 0.474937156750133, 0.347712822970540, 0.200868393871900, 0.0910613125308450, 1.0); | ||||
CONSTANT coefs_iir_cel_f0_to_f1 : STD_LOGIC_VECTOR((f0_to_f1_CEL_NUMBER*f0_to_f1_COEFFICIENT_SIZE*5)-1 DOWNTO 0) | ||||
:= get_IIR_CEL_FILTER_CONFIG( | ||||
f0_to_f1_COEFFICIENT_SIZE, | ||||
f0_to_f1_POINT_POSITION, | ||||
f0_to_f1_CEL_NUMBER, | ||||
f0_to_f1_sos, | ||||
f0_to_f1_gain); | ||||
CONSTANT ChanelCount : INTEGER := 6; | ||||
----------------------------------------------------------------------------- | ||||
SIGNAL sample : samplT(ChanelCount-1 DOWNTO 0, 17 DOWNTO 0); | ||||
SIGNAL sample_val : STD_LOGIC; | ||||
SIGNAL sample_fx : samplT(ChanelCount-1 DOWNTO 0, 17 DOWNTO 0); | ||||
SIGNAL sample_fx_val : STD_LOGIC; | ||||
SIGNAL TSTAMP : INTEGER := 0; | ||||
SIGNAL clk : STD_LOGIC := '0'; | ||||
SIGNAL clk_24576Hz : STD_LOGIC := '0'; | ||||
SIGNAL clk_24576Hz_r : STD_LOGIC := '0'; | ||||
SIGNAL rstn : STD_LOGIC; | ||||
SIGNAL signal_gen : sample_vector(0 to ChanelCount-1,17 downto 0); | ||||
SIGNAL sample_fx_wdata : Samples(ChanelCount-1 DOWNTO 0); | ||||
SIGNAL signal_rec : sample_vector(0 to ChanelCount-1,15 downto 0); | ||||
SIGNAL end_of_simu : STD_LOGIC := '0'; | ||||
|
r646 | CONSTANT half_samplig_period : time := 20345052 ps; --INTEGER( REAL(1000**4) / REAL(2.0*24576.0)) * 1 ps; | ||
|
r644 | |||
BEGIN | ||||
----------------------------------------------------------------------------- | ||||
-- CLOCK and RESET | ||||
----------------------------------------------------------------------------- | ||||
PROCESS | ||||
BEGIN -- PROCESS | ||||
WAIT UNTIL clk = '1'; | ||||
rstn <= '0'; | ||||
WAIT UNTIL clk = '1'; | ||||
WAIT UNTIL clk = '1'; | ||||
WAIT UNTIL clk = '1'; | ||||
rstn <= '1'; | ||||
WAIT UNTIL end_of_simu = '1'; | ||||
WAIT FOR 10 ps; | ||||
assert false report "end of test" severity note; | ||||
-- Wait forever; this will finish the simulation. | ||||
wait; | ||||
END PROCESS; | ||||
----------------------------------------------------------------------------- | ||||
clk_24576Hz_gen:PROCESS | ||||
BEGIN | ||||
IF end_of_simu /= '1' THEN | ||||
clk_24576Hz <= NOT clk_24576Hz; | ||||
WAIT FOR half_samplig_period; | ||||
ELSE | ||||
WAIT FOR 10 ps; | ||||
assert false report "end of test" severity note; | ||||
WAIT; | ||||
END IF; | ||||
END PROCESS; | ||||
clk_25M_gen:PROCESS | ||||
BEGIN | ||||
IF end_of_simu /= '1' THEN | ||||
clk <= NOT clk; | ||||
TSTAMP <= TSTAMP+20; | ||||
WAIT FOR 20 ns; | ||||
ELSE | ||||
WAIT FOR 10 ps; | ||||
assert false report "end of test" severity note; | ||||
WAIT; | ||||
END IF; | ||||
END PROCESS; | ||||
----------------------------------------------------------------------------- | ||||
-- LPP_LFR_FILTER f1 | ||||
----------------------------------------------------------------------------- | ||||
IIR_CEL_f0_to_f1 : IIR_CEL_CTRLR_v2 | ||||
GENERIC MAP ( | ||||
tech => tech, | ||||
Mem_use => Mem_use, -- use_RAM | ||||
Sample_SZ => 18, | ||||
Coef_SZ => f0_to_f1_COEFFICIENT_SIZE, | ||||
Coef_Nb => f0_to_f1_CEL_NUMBER*5, | ||||
Coef_sel_SZ => 5, | ||||
Cels_count => f0_to_f1_CEL_NUMBER, | ||||
ChanelsCount => ChanelCount, | ||||
FILENAME => "" | ||||
) | ||||
PORT MAP ( | ||||
rstn => rstn, | ||||
clk => clk, | ||||
virg_pos => f0_to_f1_POINT_POSITION, | ||||
coefs => coefs_iir_cel_f0_to_f1, | ||||
sample_in_val => sample_val, | ||||
sample_in => sample, | ||||
sample_out_val => sample_fx_val, | ||||
sample_out => sample_fx); | ||||
----------------------------------------------------------------------------- | ||||
----------------------------------------------------------------------------- | ||||
-- SAMPLE GENERATION | ||||
----------------------------------------------------------------------------- | ||||
PROCESS (clk, rstn) | ||||
BEGIN -- PROCESS | ||||
IF rstn = '0' THEN -- asynchronous reset (active low) | ||||
sample_val <= '0'; | ||||
clk_24576Hz_r <= '0'; | ||||
ELSIF clk'EVENT AND clk = '1' THEN -- rising clock edge | ||||
clk_24576Hz_r <= clk_24576Hz; | ||||
IF clk_24576Hz = '1' AND clk_24576Hz_r = '0' THEN | ||||
sample_val <= '1'; | ||||
ELSE | ||||
sample_val <= '0'; | ||||
END IF; | ||||
END IF; | ||||
END PROCESS; | ||||
----------------------------------------------------------------------------- | ||||
ChanelLoop : FOR i IN 0 TO ChanelCount-1 GENERATE | ||||
SampleLoop : FOR j IN 0 TO 15 GENERATE | ||||
sample_fx_wdata(i)(j) <= sample_fx(i,j); | ||||
signal_rec(i,j) <= sample_fx_wdata(i)(j); | ||||
sample(i,j) <= signal_gen(i,j); | ||||
END GENERATE; | ||||
sample(i,16) <= signal_gen(i,16); | ||||
sample(i,17) <= signal_gen(i,17); | ||||
END GENERATE; | ||||
----------------------------------------------------------------------------- | ||||
-- READ INPUT SIGNALS | ||||
----------------------------------------------------------------------------- | ||||
gen: sig_reader | ||||
GENERIC MAP( | ||||
FNAME => "input.txt", | ||||
WIDTH => ChanelCount, | ||||
RESOLUTION => 18, | ||||
GAIN => 1.0 | ||||
) | ||||
PORT MAP( | ||||
clk => sample_val, | ||||
end_of_simu => end_of_simu, | ||||
out_signal => signal_gen | ||||
); | ||||
----------------------------------------------------------------------------- | ||||
-- RECORD OUTPUT SIGNALS | ||||
----------------------------------------------------------------------------- | ||||
rec : sig_recorder | ||||
GENERIC MAP( | ||||
FNAME => "output_fx.txt", | ||||
WIDTH => ChanelCount, | ||||
RESOLUTION => 16 | ||||
) | ||||
PORT MAP( | ||||
clk => sample_fx_val, | ||||
end_of_simu => end_of_simu, | ||||
timestamp => TSTAMP, | ||||
input_signal => signal_rec | ||||
); | ||||
END; | ||||